(dev behind sculptgl, but I didn't make the HN story)

Nice project!

sculptgl is based on polygons (tris/quads only, and using webgl for rendering).

As for the other project it was just as a quick and dirty experiments :). https://stephaneginier.com/archive/editSDF/ https://www.shadertoy.com/view/WtjXDW On Unity there is Clayxel and more recently Mudbun, both based on implicit surfaces.

And obviously, the Dreams presentation which is an inspirational must see https://www.youtube.com/watch?v=u9KNtnCZDMI